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8.18 ctw Black Onyx Gemstones, Onyx Gems in Oval Cabochon Shape for Sale.
Photos are of Actual Products for Sale
8.18 ctw Black Onyx Stones, Natural Onyx in Oval Cabochon Shape for Sale Onyx Gemstones in 13 x 11 mm (calibrated) Size for Sale, Onyx Stones in Black Color

8.18ct Natural Black Onyx, Oval Cut, 13.1x11.1 mm

9.8 out of 10
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Onyx Product ID: 673177
Type: Onyx
Onyx Weight: 8.18 ct (total) Onyx 2 gems
avg. 4.09 ct
Onyx Size: 13 x 11 mm calibrated Onyx
Onyx Size: 13.1 x 11.1 x 3.5 mm Onyx
Onyx Exact Size: 13.09 x 11.11 x 3.48 mm
Length x Width x Depth
Onyx Shape: Oval Cabochon Onyx
Onyx Color: Black Onyx
Onyx Clarity: Opaque Onyx
Onyx Treatment: Dyed
Onyx Origin: Sri Lanka Onyx
Content: 2 pcs
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$
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Product Description

These are 8.18 carat natural black Onyx gems, 2 pcs in oval shape with an exact size of 13.09 x 11.11 x 3.48 mm. These loose Onyx gemstones were mined in Sri Lanka and their clarity is Opaque.

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GemSelect Certified Store Reviews

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Overall Rating -> 10 star ratings

My whole experience is great.

Posted By Ghs in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Took a chance on purchasing my gemstones from Gemselect and was impressed. 10/10

Posted By KT in September, 2025
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Overall Rating -> 10 star ratings

Very neat and to the point

Posted By Botha in March, 2026
Source: Bizrate

Overall Rating -> 8 star ratings

I visited several online loose stone shops trying to find rare stones. I finally found one that I've been looking for here, and very satisfied. Looking forward to receive the item in 3 weeks.

Posted By Atsu in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Easy process.

Posted By Crafty Seabee in March, 2026
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Overall Rating -> 10 star ratings

I purchased from you before and I have never been disappointed. I always received what I expected and your products are very nice.

Posted By MVK in July, 2025
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Download Identification Report PDF
BGL Brief Report $ 18.00
Turnaround Time: 3-4 working days Details
AIG Brief Report $ 35.00
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ICA Brief Report $ 90.00
Turnaround Time: 8-12 working days Details
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